a) Sports Day will be in the $15^{th}$ of January.

→ Sports Day will be on the $15^{th}$ of January.

Dấu hiệu nhận biết: có ngày tháng cụ thể → dùng on chứ không dùng in.

b) I don't know what I will do tomorrow. I may takes a boat trip around the island.

→ I don't know what I will do tomorrow. I may take a boat trip around the island.

Dấu hiệu nhận biết: động từ sau may phải để dạng nguyên thể → may take.

c) Tony learns English because he wants to watching cartoons.

→ Tony learns English because he wants to watch cartoons.

Dấu hiệu nhận biết: cấu trúc ai đó muốn làm gì → want(s) to do sth.

d) Conan is my favorite character. She's very clever and brave.

→ Conan is my favorite character. He's very clever and brave.

Dấu hiệu nhận biết: Conan là con trai, không phải con gái → dùng He.

e) I'm going to played volleyball on Sports Day.

→ I'm going to play volleyball on Sports Day.

Dấu hiệu nhận biết: có dự định trước → going to do sth --> going to play.

f) When I was at the zoo, the python move slowly and quietly.

→ When I was at the zoo, the python moved slowly and quietly.

Dấu hiệu nhận biết: quá khứ đơn (có was ở vế trước) → moved.

g) What will you do in the countryside next weekend? I think I'll had picnic there.

→ What will you do in the countryside next weekend? I think I'll have picnic there.

Dấu hiệu nhận biết: vế trước dùng tương lai đơn → vế sau cũng vậy → will have.

h) My sister is going to the amusement park last Sunday.

→ My sister is going to the amusement park next Sunday.

Dấu hiệu nhận biết: có is going to → tương lai gần → next Sunday.

i) When will the competition be? On the playground.

→ Where will the competition be? On the playground.

Dấu hiệu nhận biết: câu sau chỉ địa điểm → dùng where chứ không dùng when.

j) Will Children's Day be on Wednesday? No, it will. It'll be on Thursday.

→ Will Children's Day be on Wednesday? No, it won't. It'll be on Thursday.

Dấu hiệu nhận biết: phủ định của tương lai đơn → có won't.